Join Date: Dec 2004
Location: Alameda, San Francisco Bay
Thanked 60 Times in 59 Posts
Rep Power: 13
Smack, I can’t open the link, but I would guess you are looking at the “Boom Brake ™” device. A couple of friends have them and they work by having a line from one side of the boat threaded around the device and attached to boat on the other side. The theory is as the boom flys across, the friction in the device slows the line running through it thus “braking” the boom. My problem with them is they are either attached to the shroud chain plates or toe rail causing a tripping hazard going forward and while the shock loads might not be strong enough to mess with your chain plates, I’m concerned that there might be just enough movement to break the caulking seal. Re-caulking chain plates is a bear and I’d rather not do it
What the Navy does (go to the sailing program on the Annapolis web site) is to through bolt padeyes on each side near the end of boom, Then run some line about halfway along the boom, terminating it with a thimble. Mount a shock cord at the gooseneck that connects to the thimble. When in the stowed position, the assembly rests along side the boom. When running down wind the preventer goes from the cockpit through a block at the bow and back to the boom, attaching at the thimble. This makes it relatively safe and simple to attach and detach the preventer before and after a gybe. The preventer line itself is Dacron, allowing for stretch if the boom gets loaded up when getting dunked in the water. The only concern is you still need to release it in an accidental gybe as the load gets transferred to the gooseneck breaking it there or along the mid section of the boom.
Far easier is to know how to sail in waves and not get the boat headed in the wrong direction in the first place.
Coastal – Man, you need to get yourself back up here and sail in some breeze! Spending too much time down there will spoil you and you’ll never want to sail cold, damp and wet again!